%0 Journal Article %A CAO Ying %A HU Shang-Lian %A HUANG Yan %A JIANG Yong %A LU Xue-Qin %A XU Gang %T Effects of Exogenous GA3 on the Growth of Stem and CesA Gene Expression in Phyllostachys edulis Seedling %D 2017 %R 10.7525/j.issn.1673-5102.2017.05.015 %J Bulletin of Botanical Research %P 744-750 %V 37 %N 5 %X We studied the growth of stem and CesA gene expression from the seedling in Phyllostachys edulis under the different concentration of exogenous GA3(0, 0.1, 0.5, 1 μmol·L-1). Compared with without GA3 treatment, the internode and fiber cells of stem from the seedling elongated significantly, after treated by exogenous GA3. The relative expression of primary wall-related PeCesA2 and PeCesA6 genes were significantly up-regulated, while that of secondary wall-related PeCesA4 and PeCesA4-1 genes were significantly down-regulated. By Fourier transform infrared spectroscopy(FTIR), the absorption intensity of characteristic cellulose peak(1 060, 1 160 and 1 373 cm-1) from the stems enhanced with the increase of GA3 concentration. Signifying the expression of CesA gene could be affected by the exogenous GA3. The expression of PeCesA2 and PeCesA6 genes could be related to the process of fiber cells elongation. %U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2017.05.015